Item talk:Q47819
From geokb
ORCiD:
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country: value: US created-date: value: 1557353785934 display-index: 1 last-modified-date: value: 1557353785934 path: /0000-0002-4795-1992/address/1254333 put-code: 1254333 source: assertion-origin-client-id: null assertion-origin-name: null assertion-origin-orcid: null source-client-id: null source-name: value: Larry Mastin source-orcid: host: orcid.org path: 0000-0002-4795-1992 uri: https://orcid.org/0000-0002-4795-1992 visibility: public last-modified-date: value: 1557353785934 path: /0000-0002-4795-1992/address name: created-date: value: 1460759642117 credit-name: null family-name: value: Mastin given-names: value: Larry last-modified-date: value: 1460759642117 path: 0000-0002-4795-1992 source: null visibility: public
USGS Staff Profile:
'@context': https://schema.org '@type': Person affiliation: - '@type': Organization name: Fellow, Geological Society of America - '@type': Organization name: Member, American Geophysical Union - '@type': Organization name: Member, International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI) - '@type': Organization name: Member, American Meteorological Society - '@type': Organization name: Member, American Association award: - '2018: Fellow, Geological Society of America' description: - '@type': TextObject abstract: Physical Volcanologist with the Cascades Volcano Observatory additionalType: short description - '@type': TextObject abstract: I have spent much of my career working to understand, assess, and mitigate the hazards of volcanic ash. additionalType: staff profile page introductory statement - '@type': TextObject abstract: "To understand the nature of the hazard, I have studied tephra deposits\ \ in the field and designed experiments to generate volcanic ash in the laboratory.\ \ I also develop and use models that simulate the ascent of magma in conduits,\ \ rise of ash in volcanic plumes, and downwind movement of ash clouds. I have\ \ been involved in the development and application of several models that simulate\ \ these processes.I have worked with emergency managers, Volcanic Ash Advisory\ \ Centers, and specialists from more than a dozen volcano observatories around\ \ the world to improve the accuracy of volcanic ash forecasts, both for aviation\ \ safety and for ground-based communities. From 2010-2020 I served as co-chair\ \ of the World Meteorological Organization\u2019s Volcanic Ash Scientific Advisory\ \ Group, an expert panel dedicated to advising Volcanic Ash Advisory Centers\ \ on the science and practice of volcanic ash-cloud detection and forecasting.My\ \ professional life began as a mud logger working on the North Slope of Alaska\ \ in 1980-81. While studying for my master\u2019s degree at Stanford in 1982-84,\ \ I worked part time for the Tectonophysics branch of the USGS in Menlo Park,\ \ California, where I assisted with hydraulic fracturing stress measurements,\ \ and studied the growth of fractures and the development of breakouts, i.e.\ \ stress-induced zones of failure, around boreholes in sandstone.My Ph.D. work\ \ at Stanford, from 1984-1988, under Professor David Pollard, involved field\ \ and laboratory study of the growth of surface faults above a shallow dike\ \ in Long Valley Caldera, California. A second half of this study focused\ \ on how the dike heated groundwater that erupted to produce several large explosion\ \ craters, the Inyo Craters, north of the town of Mammoth Lakes.After completing\ \ my Ph.D., I worked from 1988-1990 as a post-doctoral researcher in the Geophysics\ \ Institute at the University of Karlsruhe, Germany. My tasks included compiling\ \ data for the European part of a World Stress Map project, and examining the\ \ state of stress at a deep drillhole site in northern Bavaria.At the Cascades\ \ Volcano Observatory, from 1990 through the late 2000s, I concentrated on the\ \ role of water in the style and timing of eruptions. This work involved, for\ \ example, an examination of correlations between rainfall and gas explosions\ \ at Mount St. Helens; on the conditions that produced explosive phreatomagmatic\ \ eruptions at Kilauea, and effects of turbulent water-magma mixing on eruptive\ \ style.Since the late 2000s, I have been involved primarily in volcanic ash\ \ hazards, as described above." additionalType: personal statement - '@type': TextObject abstract: "2021: \u201CComparing the hazards of wildfire smoke and volcanic ash\ \ in the Pacific Northwest\u201D, invited talk in the Cascadia Wildfire and\ \ Urban Smoke seminar series, sponsored by Portland State University and the\ \ Cascadia Innovation Corridor Iniative (search for it on YouTube)" additionalType: staff profile page abstract - '@type': TextObject abstract: "2020: \u201CProtecting air travel from volcanic ash in the coming decade\u201D\ , invited talk V08-15 at 2020 American Geophysical Union Fall Meeting." additionalType: staff profile page abstract - '@type': TextObject abstract: "2016: \u201CForecasting Ashfall Impacts from a Yellowstone Supereruption\u201D\ , USGS Menlo Park Public Lecture, May 26, 2016, https://www.usgs.gov/media/videos/forecasting-ashfall-impacts-a-yellowstone-supereruption" additionalType: staff profile page abstract email: lgmastin@usgs.gov hasCredential: - '@type': EducationalOccupationalCredential name: 1988 Ph.D. Geomechanics, Stanford University - '@type': EducationalOccupationalCredential name: 1984 M.S. Engineering Geology, Stanford University - '@type': EducationalOccupationalCredential name: 1980 B.S. Geology, University of California, Davis (cum Laude) hasOccupation: - '@type': OrganizationalRole affiliatedOrganization: '@type': Organization name: Cascades Volcano Observatory url: https://www.usgs.gov/observatories/cvo roleName: Physical Volcanologist startDate: '2024-05-12T16:16:10.131891' identifier: - '@type': PropertyValue propertyID: GeoKB value: https://geokb.wikibase.cloud/entity/Q47819 - '@type': PropertyValue propertyID: ORCID value: 0000-0002-4795-1992 jobTitle: Physical Volcanologist knowsAbout: - '@type': Thing additionalType: self-claimed expertise name: Volcanic Ash Hazards - '@type': Thing additionalType: self-claimed expertise name: Explosive Eruptions - '@type': Thing additionalType: self-claimed expertise name: Ash and Aviation - '@type': Thing additionalType: self-claimed expertise name: Volcanic Ash Clouds - '@type': Thing additionalType: self-claimed expertise name: Volcanic Ash memberOf: '@type': OrganizationalRole member: '@type': Organization name: U.S. Geological Survey name: staff member startDate: '2024-05-12T16:16:10.128703' name: Larry G. Mastin, Ph.D. url: https://www.usgs.gov/staff-profiles/larry-g-mastin
